1. Ureterocele;Campbell;J. Urol.,1941
2. Freyer, 1897: Quoted by Gutierrez.
3. Ureteroceles in children;Gummess;J. Urol.,1955
4. Modern treatment of ureterocele;Gutierrez;Surg., Gynec. & Obst.,1939
5. Further observations on ureteroceles;Lavandera;Surg., Gynec. & Obst.,1921